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负压-温度梯度电沉积镍镀层的耐腐蚀性 被引量:1

Corrosion Resistance of Nickel Coating Electrodeposited under Negative Pressure and Temperature Gradient Conditions
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摘要 在负压-温度梯度环境下制备镍镀层,并研究分析不同电沉积工艺条件和参数(如沉积空间气压、阴极面温度、阴极电流密度、添加剂等)对镍镀层在10%HCl溶液和10%H2SO4溶液中的耐腐蚀性的影响。结果表明:无添加剂镀液中制备而成的镍镀层在两种酸性溶液中的腐蚀率均随沉积空间气压(20~5kPa)的降低及阴极面温度(40~65℃)的升高而减小,随阴极电流密度(3~81A/dm2)的增加而增大;相同操作条件下,镀液中加入适量十二烷基硫酸钠添加剂后所得镍镀层的腐蚀率更低。与常态环境(常压、大气环境)下获得的镍镀层相比,负压-温度梯度环境下电沉积的镍镀层的耐腐蚀性增强。 在负压-温度梯度环境下制备镍镀层,并研究分析不同电沉积工艺条件和参数(如沉积空间气压、阴极面温度、阴极电流密度、添加剂等)对镍镀层在10%HCl溶液和10%H2SO4溶液中的耐腐蚀性的影响。结果表明:无添加剂镀液中制备而成的镍镀层在两种酸性溶液中的腐蚀率均随沉积空间气压(20~5kPa)的降低及阴极面温度(40~65℃)的升高而减小,随阴极电流密度(3~81A/dm2)的增加而增大;相同操作条件下,镀液中加入适量十二烷基硫酸钠添加剂后所得镍镀层的腐蚀率更低。与常态环境(常压、大气环境)下获得的镍镀层相比,负压-温度梯度环境下电沉积的镍镀层的耐腐蚀性增强。
机构地区 河南理工大学
出处 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2012年第S2期393-397,共5页 Rare Metal Materials and Engineering
基金 国家自然科学基金资助项目(51175152) 河南省高等学校精密制造技术与工程重点学科开放实验室资助
关键词 耐腐蚀性 镍镀层 沉积空间气压 阴极面温度 corrosion resistance nickel coating deposition space pressure cathode surface temperature
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